Stamping ya mutuana buƙatar tsara shi tare da yin nazarin tsarin da ya dace don gujewa lahani na ƙirar da ke haifar da fashewar mutuwa. Babu ƙirar aiki takaitacciya ce, yadda za a guji lahani na tsari?



Na farko, radius mai lanƙwasa kada ya yi yawa


Workpiece lanƙwasa, ban da naƙasasshiyar filastik, tare da nakasa na roba, sabon abu na sake dawowa. Saboda haka, kusurwar ɓangaren lanƙwasa bai kamata ya yi yawa ba. In ba haka ba, ba za a iya ba da tabbacin kwanciyar hankalin lanƙwasa ba.

Na biyu, radius ɗin lanƙwasa kada ya yi ƙanƙanta


Lanƙwasa kwana R ya yi ƙanƙantar da sauƙi kai tsaye zuwa saman Layer na ɗanyen fiber. Don ƙaramin ƙarfe na carbon, ƙaramin lanƙwasawa kusan 1.0T; tagulla da aluminium, ƙaramin lanƙwasawa kusan 0.6T; don carbon carbon, mafi ƙarancin lanƙwasawa kusan 1.5T.

Na uku, lanƙwasa madaidaiciya gefen bai kamata yayi ƙanƙanta ba


Domin tabbatar da ingancin lanƙwasa na kayan aiki, lanƙwasa samfuran madaidaicin gefen h bai kamata ya yi ƙanƙanta ba, dole ne ya fi girma ko daidai da mafi girman girman lanƙwasa. h â ‰ ¥ hmin = r + 2t dabara: r - lanƙwasa kwana t - lanƙwasa farantin farantin

Na huɗu, lanƙwasa gefen gefen nesa daga ramin rami kada ya yi ƙanƙanta


Lokacin lanƙwasa blanks tare da ramuka, nisan gefen ramin bai kamata yayi ƙanƙanta ba. Idan ramin ya yi kusa da gefen lanƙwasa, siffar ramin zai canza lokacin lanƙwasa. Daga gefen rami zuwa gefen lanƙwasa na nesa L, L yakamata ya kasance daidai da tsarin da ke gaba: lokacin t <2, L â ‰ + r + t lokacin t â ‰ ¥ 2, L â ‰ ¥ r + 2t dabara: r - lanƙwasa kwana; t - kaurin yanki mai lankwasa.

Na biyar, siffar lanƙwasa da girman sifar bai kamata ya bambanta da yawa ba


Don hana nakasa, tsayin sassan lanƙwasa bai kamata ya bambanta da yawa ba. Siffa da girman sassan lanƙwasa ya zama daidai gwargwado, in ba haka ba a ƙaramin ƙarshen zai haifar da gurɓataccen gurbatawa. Idan irin wannan ya haifar da ƙira mai wahalar haɓakawa, dole ne ya tabbatar da cewa: h> r + 2t formula: h - tsayin ƙaramin gefen; r - lanƙwasawa mai zagaye; t - lanƙwasa yanki farantin farantin.

Na shida, gefen lanƙwasa na gida bai kamata ya yi watsi da ramin ramin ramin naushi ba


A cikin lanƙwasa yanki na gefen, don yin tunani a mahaɗar saboda tsananin damuwa da tsagewa, bai kamata ya yi watsi da bugun farko na sauke ramuka ba, yanke ramuka, ko lanƙwasa layin ƙaura zuwa wani tazara.


Bakwai, kunkuntar gefen lanƙwasa kada ta yi watsi da yanke tsarin


Ƙunƙarar gefe mai lanƙwasawa, yankin naɓarɓarewar siffar giciye za ta gurbata, wato faɗin farfajiyar ciki ya zama mai faɗi, faɗin sararin samaniyar ya zama ƙarami. Lokacin faɗin farantin b <3t (t don kaurin farantin), musamman a bayyane.
Idan faɗin ɓangarorin da aka lanƙwasa b babban buƙatu na ƙwarai, kada ku ƙyale sabon abu, kada ku yi watsi da layin lanƙwasa a gaba don yinaiwatar incision.

Takwas, tsarin lanƙwasa ba zai iya yin watsi da sake dawowa ba


Lanƙwasa naƙasasshen filastik da nakasa na roba a lokaci guda. Lokacin da aka cire lodin waje, nakasa na ɓacewa, yana haifar da sake dawowa. Maimaita darajar da kaddarorin kayan, dangin lanƙwasa radius r / t, kusurwar lanƙwasa da sauran abubuwan.
Mafi girman ma’anar yields na kayan, ƙaramin modulus na elasticity E, ƙaramin r/t, mafi girman lanƙwasa, mafi girman sake dawowa. Domin tabbatar da daidaiton kayan aikin, lanƙwasa ba zai iya yin watsi da sake dawowa ba.
Akwai don gyara ƙirar, amfani da ɓangarori daban -daban na madaidaicin juyawa, haɓaka gida a cikin hanyar haƙarƙarin triangular don rage jujjuyawar, kuma ana iya amfani da shi don rage jujjuyawar ƙirar ƙirar juyawa.

Tara, radiyon lanƙwasa na kayan aikin ba zai iya amfani da hanyar lanƙwasawa ta yau da kullun ba


Don radius ɗin lanƙwasa na sassan, ba za a iya amfani da hanyar lanƙwasa ta talakawa ba. In ba haka ba, saboda babban nakasa na roba ba zai iya samun siffar da girman da ake buƙata ba, a wannan lokacin akwai hanyar lanƙwasa mai lanƙwasa.
Kafin lanƙwasa takardar tare da tashin hankali na axial, bayanan don damuwar da ke cikin ɓangaren da ba ta da fa'ida ta fi girma fiye da mahimmancin kayan, sannan a lanƙwasa cikin tashin hankali a lokaci guda.

Goma, lanƙwasa sassa masu fasali mai rikitarwa ba zai iya kasancewa a wuri ɗaya ba


Don sifa mai rikitarwa na sassan lanƙwasa, ba za a iya lanƙwasa cikin lanƙwasa ba, da buƙatar lanƙwasawa da kafawa da yawa. Ka'idar tsarin yin aiki shine lanƙwasa kusurwar waje. Bayan lanƙwasa na biyu ba zai iya shafar ɓangaren lanƙwasa na baya na nakasa ba. Yawan lanƙwasa na iya zama sau biyu, sau uku, ko ma fiye da haka.


Goma sha ɗaya, gefen ɓangaren lanƙwasa bai kamata ya sami tazara ba


Bangaren gefen lanƙwasa masu lanƙwasa, idan rata a cikin ramin za a fitar da shi, lanƙwasa zai bayyana daɗaɗɗa, kuma a cikin mawuyacin hali ba za a iya kafa shi ba. Wannan ya zama dole don barin haɗi a rata, don lanƙwasa cikin sifa sannan za a cire haɗin.

Sha biyu, tsarin mutuƙar lanƙwasawa ba zai iya yin watsi da raunin da aka yi ba


A cikinlankwasawa tsari, rashi abu ne mai mahimmanci wanda ke shafar daidaiton kayan aikin, don haka kafin fara lanƙwasa, faifan yakamata ya kasance wani ɓangare na abin dogaro wanda aka gyara a cikin wani sashi don hana ragin lokacin lanƙwasa.
Yakamata a yi amfani da ramuka a ɓangaren don saka matsayi gwargwadon iko. Idan ɓangarorin ba su da ramuka, to la'akari da matsayin ramin tsari.


Goma sha uku,lanƙwasa moldtsarin bai kamata ya sanya kayan da ke cikin kwandon ya zama babban sikeli na cikin gida ba


Yakamata a lura da mutuƙar lanƙwasawa yayin aiwatar da lanƙwasa ƙirar kawai a cikin ɓangaren don tantance wurin layin lanƙwasa. Ba za a samar da faranti mai girma ba da raɗaɗi.
Bending using the structure of the left, the position of the bending line at the outer corner C in the lankwasawa tsari is changing, first at point B, and finally to point C, so that the shape of the outer corner of the part is not allowed, the straight arm part thinning.

Goma sha huɗu, tsarin ƙirar bai kamata ya hana ba kuma ya hana fanko yayin aiwatar da jujjuyawar motsi da motsi


Tsarin lanƙwasa ƙirar yakamata yayi la'akari da komai a cikin lanƙwasa sararin juyawa, ba zai iya hanawa da hana blank don motsawa da juyawa ba, in ba haka ba zai shafi siffa da girman kayan aikin. Wannan yana da mahimmanci musamman ga sifar lanƙwasa lanƙwasa mai kusurwa da yawa.


Goma sha biyar, bai kamata a yi amfani da kayan aikin lanƙwasawa a cikin ƙaramin ƙirar kayan abu ba


The size of the bending rebound and material modulus of elasticity is proportional. Small modulus of elasticity of the material after deformation of the elastic recovery, should not be used in the lankwasawa tsari.
Matsayin amfanin ƙasa iri ɗaya na kayan, ƙirar na roba na kayan bayan nakasa na dawo da na roba ƙarami ne. An anneled low carbon carbon fiye da taushi manganese tagulla dace da lankwasa workpiece abu.

Goma sha shida, kayan aikin lanƙwasawa bai kamata a yi amfani da su don lanƙwasa kayan ba tare da mahimmancin amfanin ƙasa


The size of the bending rebound is proportional to the yield limit of the material. High yield point of the material, the elastic recovery after deformation, should not be used in the lankwasawa tsari. That is, the same modulus of elasticity of the material, the yield point of high material, elastic recovery is larger. Therefore, cold hardening steel should not be used for lankwasawa tsari.

Goma sha bakwai, don radiyo mai lanƙwasa da kusurwar baka manyan sassa ne masu lanƙwasawa, bai kamata a yi amfani da su don hanyoyin lanƙwasawa na yau da kullun ba.


Radiyon lanƙwasa da lanƙwasa lanƙwasa manyan manyan lanƙwasa ne yakamata a birgima (birgima farantin), kuma ba za su iya amfani da hanyar lanƙwasa ta talakawa ba. An sanya lanƙwasa lanƙwasa a kan faranti a cikin mirgina 2 zuwa 4 ta hanyar, tare da jujjuyawar jujjuyawar, don farantin lanƙwasa cikin siffa. Bugu da ƙari, saboda matsayin rollers za a iya canza shi yadda yakamata dangane da farantin, don haka ana iya yin shi zuwa kashi huɗu, oval, da sauran ɓangarorin da ba madauwari ba.

Goma sha takwas, lanƙwasa na dogon tsiri abu kada yayi amfani da hanyar lanƙwasa ta yau da kullun


Dogayen tsiri a kusa da ginshiƙin lanƙwasa ya kamata a yi amfani da shi don mirgine kafa kuma kada ya yi amfani da hanyar lanƙwasa ta talakawa. An sanya Roll forming a gaba da bayan madaidaiciyar jere na ƙungiyoyi da yawa na yin rollers ta.
Yayin da rollers ke juyawa, ana ciyar da kayan tsiri a gaba ɗaya, sannan a lanƙwasa ƙirar axial. Roll forming yana da ikon samar da sassa tare da hadaddun sashe na giciye. Yin ƙulli ya fi sauƙi, ƙananan farashi, da tsawon rai.

Goma sha tara, sassan giciye masu canzawa bai kamata su yi amfani da hanyar yin jeri na gaba ɗaya ba


Sassan sassa masu sassaƙaƙƙun sassaƙaƙƙun abubuwa a cikin ƙanana da matsakaitan samarwa, don rage saka hannun jari, ana iya amfani da yin juyi. A wannan lokacin, mai yin abin nadi baya ga motsi na dangi mai tsayi na slab, amma har da motsi na ƙetare.

Ashirin, kada a yi amfani da bututu da lanƙwasa bayanin martaba don hanyoyin lanƙwasa na yau da kullun


Kodayake yanayin nakasa, bututu da lanƙwasa bayanin martaba da lanƙwasa takardar iri ɗaya ne, amma tsari da wahalar babban bambanci. Dole ne a hana lanƙwasa bututu da bayanan martaba daga lanƙwasa nakasa a cikin ɓarkewar sifar sashi.

A cikin samarwa, bututu da hanyoyin lanƙwasa bayanin martaba kamar jan lanƙwasa, birgima, lanƙwasawa da lanƙwasawa. Ya kamata a lura da cewaconvex mutu saboda jan lanƙwasa, mirgine lanƙwasa mirgine, turawa da lanƙwasawa da lanƙwasawa a kusa da madaidaicin mutu, yakamata a sanya farfajiyar aiki don dacewa da siffar tsagin ɓangaren fanko don hana jujjuya sashe da karkatar da siffa. Idan ya cancanta, shima yakamata a ƙara bututun zuwa mandrel mai dacewa.